World War One By musika_lotoaniu Jun 28, 1914 Assasination of Francis Ferdinand at Sarajevo Jul 5, 1914 Kaiser William II promised German support for Austria against Serbia Jul 28, 1914 Austria declared war on Serbia Aug 1, 1914 Germany declared war on Russia Aug 3, 1914 Germany declared war on France and invaded Belgium. Aug 4, 1914 Britain declared war on Germany Apr 25, 1915 Allied forces landed in Gallopoli May 23, 1915 Italy declared war on Germany and Austria Dec 19, 1915 Allied Groups evacuate Gallopoli Jan 27, 1916 Conscription in Britain begins Apr 6, 1917 USA declared war on Germany Nov 6, 1917 Britain launched a major offensive on the Western Front Dec 5, 1917 Armistice between Germany and Russia signed Dec 9, 1917 Britain captured Jerusalem from the Turks Mar 3, 1918 The Treaty of Brest-Litovsk was signed between Russia and Germany. Jul 15, 1918 Second Battle of the Marne started. The start of the collapse of the German army Aug 8, 1918 The advance of the Allies was successful Oct 4, 1918 Germany asked the Allies for an armistice Oct 30, 1918 Turkey made peace Nov 3, 1918 Austria made peace Nov 9, 1918 Kaiser William II abdicated Nov 11, 1918 Germany signed an armistice with the Allies – the official date of the end of World War One.